For three-phase motors of power from 0.5 to 630 KW with single-phase power supply (1 X 220V) (Mono with power up to 3.7KW) or three-phase (3X380V) up to 630KW. High efficiency, reduced noise, high torque, reduced harmonics and fast processing are characteristic. . Application of motors having fluctuating torque loads, pumps, fans, cooling towers, conveyor belts, industrial washers, etc..